Section 7: Service; Troubleshooting - Grizzly G0642 Owner's Manual

troubleshooting

SECTION 7: SERVICE

Review the troubleshooting and procedures in this section to fix or adjust your machine if a problem devel-
ops. If you need replacement parts or you are unsure of your repair skills, then feel free to call our Technical
Support at (570) 546-9663.
Motor & Electrical
Symptom Possible Cause
Machine does not 1. Plug/receptacle is at fault or wired incor-
start or a breaker
rectly.
trips.
2. Start capacitor is at fault.
3. Motor connection wired incorrectly.
4. Wall fuse/circuit breaker is blown/tripped.
5. Power supply switched OFF or is at fault.
6. Wiring is open/has high resistance.
7. Power ON/OFF switch is at fault.
8. Centrifugal switch is at fault.
9. Motor is at fault.
Machine has vibra- 1. Motor or component is loose.
tion or noisy opera-
tion.
2. Motor mount loose/broken.
3. Machine is incorrectly mounted or sits
unevenly on floor.
4. Motor fan is rubbing on fan cover.
5. Motor/boring head bearings are at fault.
6. Centrifugal switch is faulty.
7. Chuck or boring bit is at fault.
Machine stalls or is 1. Workpiece material is not suitable for this
overloaded.
machine.
2. Run capacitor is at fault.
3. Motor connection is wired incorrectly.
4. Plug/receptacle is at fault.
5. Motor/boring head bearings are at fault.
6. Machine undersized for task.
7. Motor has overheated.
8. Motor is at fault.
9. Centrifugal switch is at fault.
Model G0642 15-Bit Line Boring Machine
Troubleshooting
Possible Solution
1. Test for good contacts; correct the wiring.
2. Test/replace if faulty.
3. Correct motor wiring connections.
4. Ensure circuit size is suitable for this machine;
replace weak breaker.
5. Ensure power supply is switched on; ensure power
supply has the correct voltage.
6. Check for broken wires or disconnected/corroded
connections, and repair/replace as necessary.
7. Replace faulty ON/OFF switch.
8. Adjust/replace the centrifugal switch if available.
9. Test/repair/replace.
1. Inspect/replace stripped or damaged bolts/nuts, and
re-tighten with thread locking fluid.
2. Tighten/replace.
3. Tighten/replace anchor studs in floor; relocate/shim
machine.
4. Replace dented fan cover; replace loose/damaged
fan.
5. Test by rotating shaft; rotational grinding/loose shaft
requires bearing replacement.
6. Replace.
7. Replace out-of-round chuck, dull, or bent boring bit.
1. Only drill wood products; make sure moisture con-
tent is below 20% and there are no foreign materials
in the workpiece.
2. Test/repair/replace.
3. Correct motor wiring connections.
4. Test for good contacts; correct the wiring.
5. Test by rotating shaft; rotational grinding/loose shaft
requires bearing replacement.
6. Use sharp bits/reduce downfeed rate.
7. Clean off motor, let cool, and reduce workload.
8. Test/repair/replace.
9. Adjust/replace centrifugal switch if available.
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